105p 3
The use of shock therapa has not produced the desired result in mentally ill patients in the 1970s.
이 문제에서 the 1970s 때문에 has not produced가 틀렸잖아요 과거형을 써야하는데
had not produced가 아니라 did not produced인 이유는 무엇인가요?
04/29(월) 09:58
닫기105p 3
The use of shock therapa has not produced the desired result in mentally ill patients in the 1970s.
이 문제에서 the 1970s 때문에 has not produced가 틀렸잖아요 과거형을 써야하는데
had not produced가 아니라 did not produced인 이유는 무엇인가요?